libDXF 0.0.1

A library with DXF related functions written in C.

Functions for DXF objects. More...

#include "object.h"

Include dependency graph for object.c:

Go to the source code of this file.

Functions
DxfObject *	dxf_object_new ()
	Allocate memory for a DXF `object`.
DxfObject *	dxf_object_init (DxfObject *object)
	Allocate memory and initialize data fields in a DXF `OBJECT` entity.
int	dxf_object_write_objects (DxfFile fp, DxfObject dxf_objects_list)
	Write DXF output to a file for a table of objects.
int	dxf_object_free (DxfObject *object)
	Free the allocated memory for a DXF `object` and all it's data fields.
void	dxf_object_free_chain (DxfObject *objects)
	Free the allocated memory for a chain of DXF `objects` and all their data fields.
DxfEntityType *	dxf_object_get_entity_type (DxfObject *object)
	Get the `entity_type` from a DXF `OBJECT` entity.
DxfObject *	dxf_object_set_entity_type (DxfObject *object, DxfEntityType entity_type)
	Set the `entity_type` to the DXF `OBJECT` entity.
DxfObject *	dxf_object_get_next (DxfObject *object)
	Get the pointer to the next `OBJECT` entity from a DXF `OBJECT` entity.
DxfObject *	dxf_object_set_next (DxfObject object, DxfObject next)
	Set the pointer to the next `OBJECT` for a DXF `OBJECT` entity.
DxfObject *	dxf_object_get_last (DxfObject *object)
	Get the pointer to the last `OBJECT` entity from a linked list of DXF `OBJECT` entities.

Detailed Description

Functions for DXF objects.

Author:: Copyright (C) 2009, 2010, 2012, 2014, 2015, 2017 by Bert Timmerman <bert.timmerman@xs4all.nl>.

Copyright Notices.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to:
Free Software Foundation, Inc.,
59 Temple Place,
Suite 330,
Boston,
MA 02111 USA.

Drawing eXchange Format (DXF) is a defacto industry standard for the exchange of drawing files between various Computer Aided Drafting programs.
DXF is an industry standard designed by Autodesk(TM).
For more details see http://www.autodesk.com.

Definition in file object.c.

Function Documentation

DxfObject* dxf_object_new ( )

Allocate memory for a DXF object.

Fill the memory contents with zeros.

Definition at line 45 of file object.c.

References _, DXF_DEBUG_BEGIN, and DXF_DEBUG_END.

Referenced by dxf_object_init().

DxfObject* dxf_object_init ( DxfObject * object )

Allocate memory and initialize data fields in a DXF OBJECT entity.

Returns:: NULL when no memory was allocated, a pointer to the allocated memory when succesful.

Todo:: Add code for initialising a DxfParam.

Parameters:

object DXF object entity.

Definition at line 83 of file object.c.

References _, DXF_DEBUG_BEGIN, DXF_DEBUG_END, DXF_MAX_PARAM, dxf_object_new(), and UNKNOWN_ENTITY.

Referenced by dxf_drawing_init().

Here is the call graph for this function:

int dxf_object_write_objects	(	DxfFile *	fp,
		DxfObject *	dxf_objects_list
	)

Write DXF output to a file for a table of objects.

Appears only in TABLES section.

Todo:: Add code here.

Parameters:

fp	DXF file pointer to an output file (or device).
dxf_objects_list	Pointer to a list of DXF objects.

Definition at line 128 of file object.c.

References DXF_DEBUG_BEGIN, and DXF_DEBUG_END.

int dxf_object_free ( DxfObject * object )

Free the allocated memory for a DXF object and all it's data fields.

Returns:: EXIT_SUCCESS when done, or EXIT_FAILURE when an error occurred.

Parameters:

object Pointer to the memory occupied by the DXF object entity.

Definition at line 155 of file object.c.

References _, DXF_DEBUG_BEGIN, DXF_DEBUG_END, and dxf_object_struct::next.

Referenced by dxf_object_free_chain().

void dxf_object_free_chain ( DxfObject * objects )

Free the allocated memory for a chain of DXF objects and all their data fields.

Parameters:

objects a pointer to the chain of DXF objects.

Definition at line 195 of file object.c.

References _, DXF_DEBUG_BEGIN, DXF_DEBUG_END, dxf_object_free(), and dxf_object_struct::next.

Referenced by dxf_drawing_free().

Here is the call graph for this function:

DxfEntityType* dxf_object_get_entity_type ( DxfObject * object )

Get the entity_type from a DXF OBJECT entity.

Returns:: entity_type.

Warning:: No checks are performed on the returned pointer.

Parameters:

object a pointer to a DXF OBJECT entity.

Definition at line 230 of file object.c.

References _, DXF_DEBUG_BEGIN, DXF_DEBUG_END, and dxf_object_struct::entity_type.

DxfObject* dxf_object_set_entity_type	(	DxfObject *	object,
		DxfEntityType	entity_type
	)

Set the entity_type to the DXF OBJECT entity.

Parameters:

object	an DXF `OBJECT` entity.
entity_type	a pointer to the `entity_type` for the DXF `OBJECT` entity.

Definition at line 264 of file object.c.

References _, DXF_DEBUG_BEGIN, DXF_DEBUG_END, and dxf_object_struct::entity_type.

DxfObject* dxf_object_get_next ( DxfObject * object )

Get the pointer to the next OBJECT entity from a DXF OBJECT entity.

Returns:: pointer to the next OBJECT entity.

Warning:: No checks are performed on the returned pointer.

Parameters:

object a pointer to a DXF OBJECT entity.

Definition at line 308 of file object.c.

References _, DXF_DEBUG_BEGIN, DXF_DEBUG_END, and dxf_object_struct::next.

DxfObject* dxf_object_set_next	(	DxfObject *	object,
		DxfObject *	next
	)

Set the pointer to the next OBJECT for a DXF OBJECT entity.

Parameters:

object	a pointer to a DXF `OBJECT` entity.
next	a pointer to the next `OBJECT` for the entity.

Definition at line 344 of file object.c.

References _, DXF_DEBUG_BEGIN, and DXF_DEBUG_END.

DxfObject* dxf_object_get_last ( DxfObject * object )

Get the pointer to the last OBJECT entity from a linked list of DXF OBJECT entities.

Returns:: pointer to the last OBJECT entity.

Warning:: No checks are performed on the returned pointer.

Parameters:

object a pointer to a DXF OBJECT entity.

Definition at line 387 of file object.c.

References _, DXF_DEBUG_BEGIN, DXF_DEBUG_END, and dxf_object_struct::next.